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Finding the Fourth Proportional to 668,714.02, 922,825.24 and 382,240.25

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Solution

The fourth proportional to 668,714.02, 922,825.24 and 382,240.25 is: 527,491.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,714.02 : 922,825.24 = 382,240.25 : x
  2. Step 2: Convert to fraction form
    668,714.02/922,825.24 = 382,240.25/x
  3. Step 3: Cross multiply
    668,714.02x = 922,825.24 × 382,240.25
  4. Step 4: Simplify right side
    668,714.02x = 352,740,950,443.91
  5. Step 5: Solve for x
    x = 352,740,950,443.91/668,714.02
  6. Step 6: Final answer
    x = 527,491.48

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.